1.

Gopi buys a fish from a shop for his aquarium. The shopkeeper takes out one fish at random from a tank containing 5 male fish and 8 female fish (see Figure). What is the probability that the fish taken out is a male fish?

Answer» P(A)= (no of fav outcomes)/(no of all outcomes)
`= (n(A))/(n(B))`
`A-n(A)= 5`
`n(S)= 5+8=13`
`P(A)= (n(A))/(n(S))`
`=5/13`
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